Etc isn't going to be your savior lol, its a shitcoin and always will be a shitcoin.  I say this as someone who mines it with some old gpu's but the chain has virtually no purpose or prospects for doing anything meaningful.

Eth flipping the pow switch to "off" will be amazing for the gpu market, me thinks it will be crazier than any gpu crash of the past.  I really really hope rtx 3080s get super cheap as millions of them are sold off to the resale market.  How wonderful would it be in the chaos to grab a few of these high end gpus on the cheap and start prepping for the next bullrun and rise of a high tps pow blockchain.  Mining profits will be crap for a good while but the market will balance out after awhile